Cable kink protection unit and method for producing same

Abstract

A cable kink protection unit, in particular a cable kink protection unit of a portable tool, includes at least one basic body unit. The cable kink protection unit has at least one electric device housing unit integrally connected to the basic body unit.

What is claimed is: 
     
       1. A portable tool assembly, comprising:
 a portable power tool having (i) a tool housing part defining a cavity and a housing aperture leading to the cavity, and (ii) an electric cable possessing a plurality of current carrying wires, the electric cable extending from the cavity through the housing aperture; and 
 a cable kink protection unit having (i) a sleeve defining a passageway through which the electric cable extends, and (ii) a housing lid attached to the tool housing part, the housing lid having a lid aperture through which the sleeve extends, 
 wherein the cable kink protection unit is prepared by a process including integrally connecting the sleeve and housing lid together in an injection molding process. 
 
     
     
       2. The portable power tool assembly of  claim 1 , wherein:
 the housing lid includes a housing facing surface, 
 the cable kink protection unit further has a damping and sealing element supported on the housing facing surface, and 
 the damping and sealing element is positioned in contact with the tool housing part. 
 
     
     
       3. The portable power tool assembly of  claim 2 , wherein the damping and sealing element is configured to encircle the lid aperture. 
     
     
       4. The portable power tool assembly of  claim 3 , wherein:
 the housing lid further defines a plurality of perforation apertures circumferentially distributed around the lid aperture, and 
 the plurality of perforation apertures are interposed between the damping and sealing element and the lid aperture. 
 
     
     
       5. The portable power tool assembly of  claim 3 , wherein portions of the sleeve respectively extend through the plurality of perforation apertures. 
     
     
       6. The portable power tool assembly of  claim 2 , wherein the cable kink protection unit is further prepared by a process including injecting the damping and sealing element on the housing facing surface. 
     
     
       7. The portable power tool assembly of  claim 1 , wherein:
 the tool housing part includes an indentation structure defining a mounting recess, 
 the indentation structure defines the housing aperture, and 
 the housing lid is located in the mounting recess. 
 
     
     
       8. The portable power tool assembly of  claim 7 , wherein the lid aperture is located in the mounting recess. 
     
     
       9. The portable power tool assembly of  claim 1 , wherein the portable power tool is an angle grinder. 
     
     
       10. The portable power tool assembly of  claim 1 , wherein:
 the electric cable defines an annular groove, 
 the sleeve includes an interior surface defining the passageway, and 
 the sleeve includes a sealing bead projecting from the interior surface and extending into the annular groove. 
 
     
     
       11. The portable power tool assembly of  claim 1 , wherein:
 the sleeve includes an exterior surface defining an exterior sleeve recess, 
 the housing lid includes an aperture structure that defines the lid aperture, and 
 the aperture structure is positioned in the exterior sleeve recess. 
 
     
     
       12. The portable power tool assembly of  claim 1 , wherein:
 the tool housing part includes an indentation structure defining a mounting recess, 
 the indentation structure defines the housing aperture, 
 the housing lid includes a housing facing surface, 
 the cable kink protection unit further has a damping and sealing element supported on the housing facing surface, 
 the damping and sealing element is positioned in contact with the tool housing part, 
 the housing lid further defines a plurality of perforation apertures circumferentially distributed around the lid aperture, 
 the plurality of perforation apertures are interposed between the damping and sealing element and the lid aperture, 
 the electric cable defines an annular groove, 
 the sleeve includes an interior surface defining the passageway, 
 the sleeve includes (i) a sealing bead projecting from the interior surface and extending into the annular groove, and (ii) the sleeve includes an exterior surface defining an exterior sleeve recess, 
 the housing lid includes an aperture structure that defines the lid aperture, 
 the aperture structure is positioned in the exterior sleeve recess, and 
 the following are located in the mounting recess, (i) the housing lid, (ii) the damping and sealing element, (iii) the plurality of perforation apertures, (iv) the annular groove of the electric cable, (v) the sealing bead, (vi) the exterior sleeve recess, and (vii) the aperture structure of the housing lid.